Sanding and polishing machine.



No. 699,368. Patented May 6, I902. DE LASKI T. CLEMONS.

SANDING AND POLISHING MACHINE.

(Application filed Sept. 9, 1901.)

(No Model.) 4 Sheets-$heet I.

W INVENTOR- fT/VE 555- u m: nonms mans co. vnmouma, wisumeron, 0.1:.

No. 699,368. Patented May 6, I902.

DE LASKI T. CLEMUNS.

SANDING AND POLISHING MACHINE.

' (Application filed Sept. 9, 1901) (No Model.) 4 Sheets-Sheet 2.

wumum" I f/VVENTOR; WITNESiES: Q2?

BY 2 I u Alto/ Hex THE Nonms PETERS co. PWOTO-LIYHQ. WASNINGYON n c No. 699,368. Patented May 6, I902.

DE LASKI T. CLEMONS.

SANDING AND POLISHING MACHINE.

'Application filed Sept. 9 1901 v No M d .3 v 0 el 4 Sheets-Sheet 3.

7 1 6 77! BY I 7 A/fome m: uoams PETERS w. Puoroumu. WASMINOYON o c Patented May 6,1902.

DE LASKI T. CLEMONS.

SANDING AND POLISHING MACHINE.

(Application filed Sept. 9, 1901.)

4 Sheets$hee 4.

(ND Medal.)

WIT/V555 n4: rioams vnzas cu. mmumo wasmnurou. n. c.

U TT D STATES PATENT OFFICE.-

DE LASKI T. OLEMONS, OF IIORNELLSVILLE, NEW' YORK, ASSIGNOR OF ONE- HALF TO GEORGE CONDER AN, OF I'IORNELLSVILLE, NEW YORK.

SANDING AND POLISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 699,368, dated May 6, 1902.

Application filed September 9, 1901. Serial No. 74,753. (No model.)

To all 20. 1.0122, it may concern.-

Be it known that I, DE LASKI T. OLEMoNs, a citizen of the United States, residing at Hornellsville, in the county of Steuben and State of New York, have invented certain new and useful Improvements in Sanding and Polishing Machines, of which the following is a.

surfaces it is essential not only that the roughness be reduced, but that the dirt and dust be cleared from the pores of the wood, so as to leave the natural grain clean and in condition when polished to bring out fully the beauties of the wood.

The present invention relates to a sanding and polishing machine particularly adapted for finishing plane surfaces, although the machine is adapted to some extent for the fin ishing and polishing of curved surfacessuch as the beveled or curved edges of tabletops, desk-tops, and the like-a nd while'th'e present machine is shown and described as adapted for polishing wooden surfaces it will be understood that it may be used upon any material to which it is desired to impart a smooth-finished surface by merely utilizing in the machine abrasive materials adapted to attack and finish the material which it is desired to smooth and polish.

The present machineis a combination sandpapering and polishing machine, it being so constructed that by merely changing the belt, which forms the active sanding or polishing element of the machine, it can be readily shifted from a sandpapering-machine adapted to smooth the rough material placed upon the worktable to a polishing-machine capable of imparting a high polish to the sandpapered articles.

In the drawings which accompany and form a partof this specification, Figure l is a side view of a complete machine, showing one embodiment of my invention. Fig. 2 is an end view with parts of the machine broken away for clearness of illustration. Fig. 3 is a plan .view of the machine, the sanding, or polishing belt being removed to show the parts be-llow the same. Fig. 4 is'a detail view of the supportingrtracks and supporting-frame for the work-table. Fig. 5 is a bottom view of the work-table with its attached parts. Fig. 6 is a detail view of a portion of the supporting-frame for the belt-guide, and Fig. 7 is a detail View showing the position of the parts shown in Fig. 6 when the machine is being used to finish or polish the rounded edges of a table or desk top. Figs. 8 and 9 are detail views of the belt guide and its supports. Fig. 10 is a detail view of the pivotal mounting of the pulley-bearings.

Referring to the drawings by numerals, similar numerals referring to like parts in the several views, 1 indicates the end frames of the machine," which are preferably formed of angle-iron castings, said end frames being joined by side frames 2 of suitable form, as shown in Figs. 1 and 3. Mounted in bearings 3, preferably carried on the inner sides of the said side frames 2, are supporting-standards 4, these standards being four in number and being threaded at their lower ends in the side bearings 3, soas to be capable of vertical adjustment therein. One of these standards 4: is provided with a hand-wheel 5, by means of which it can be raised and lowered, and in order that a simultaneous adjustment of the other standards 4 may be secured the said standards are provided with sprocket-wheels 6, which are threaded to the standards and rest upon the bearings 3, said sprocket-wheels being connected by a flexible chain 7, so that as the hand-wheel 5 and its sprocket-wheel 6 are revolved a simultaneous vertical adjustment is imparted to the said standards 4. Mounted upon said standards 4. and extending transversely of the machine are tracks 8, (see Fig. 2,) said tracks being provided at their ends with upturned stops 9, which prevent overrunning of the carriage which is mounted on said tracks 8 and to which reference will be made hereinafter. Upon said tracks 8 is mounted a carriage composed of a suitable frame 10, in which are mounted two axles 11, carrying at their outer ends roll- ICO ers 12, which rest upon the said tracks 8 and travel thereon, two of said rollers 12 being preferably grooved, as shown in Fig.1, in order to keep the said carriage in position upon the tracks. The outer ends of said rollers 12 are elongated, and said elongated portions are provided with grooves 13, in which rest supporting-frames 14, which form the immediate support for the work-table 15, the said frames 14 having downwardly-turned stops 14 to prevent overrunning of said frames on the grooved rollers 12. Said work-table and frames are secured together by means oflinks 16, mounted upon rock-shafts 17, carried by said frames 14, said links 16 being secured at their upper ends to downwardly-projecting ribs or flanges 18, fixed to the bottom of the said table 15. It will be seen fromthis construction that the table is capable of a slight vertical movement relative to its supportingframes 14, the object of this construction being to permit the table to be raised and lowered relative to the sanding or polishing devices, which will be described hereinafter. Normally said table 15 will rest in its lower position, as shown in Fig. 2, and in order that it may be readily thrown to its upper position a hand lever or rod 19 is provided, said rod being connected by, suitable arms 20 with one of said rock-shafts 17, so that downward movement of the said lever 19 will rock the shaft 17, throw the links 16 to their vertical position, and raise the table, a weighted lever 21 being secured to the other rock-shaft 17 to serve as a counterbalance for the table and enable the attendant to raise it and the work upon it with slight exertion. Mounted at the upper ends of the said end frames 1 and substantially centrally of the machine is a supporting-beam 22, said supporting-beam having bearings 23 projecting therefrom, and in said bearings are mounted screw-threaded spindles 24, one of said spindles being provided with a handwheel 25, having a sprocket-wheel 26, and the other of said spindles being provided with a sprocket-Wheel 27, which is connected to the first-named sprocket-wheel 26 by means of a flexible chain 28, so that as the hand-wheel is rotated the said spindles 24 will be raised and lowered simultaneously. Supported by the lower ends of said spindles 24 is aframe 29, having side flanges 30, (see Fig. 2,) said frame 29 being provided with sleeved apertures 31, through which depending rods 32 extend, said rods being supported at their upper ends by means of yokes 33. The lower ends of said rods 32 are turned at right angles, as shown in Fig. 9, and engage spring-plates 34, secured to the top of the belt-guide 35, and as said right-angled ends are thus yieldingly held by the said spring-plates 34 they will permit a slight transverse rocking of the belt-guide 35,

so as to permit the sanding or polishing belt, to which reference will be made hereinafter, to adapt itself to slight inequalities in the surfaces being finished. The said supportingrods 32 are capable of vertical movements by reason of the springs 36, which, as shown in Fig. 8, are held'between the collar 37 on the rod 32 and an adjustable sleeve 38, mounted in the upper end of the sleeve 39, through which the supporting rod 32 passes, said sleeves 39 passing through the apertures 31 in the said adjustable frame 29 above referred to. Adjustably mounted on the same frame 29 at each end thereof and supported by the flange are sliding plates 40, said plates being provided with locking means, as thumbscrews 41, by means of which they may be firmly fixed in position in frame 29. Secured at one end to ears 42 on said plates are swinging frames 43, in which are mounted rollers 44, said frames 43 being supported at their other ends by means of lugs 45, mounted on the ends of the guide 35. The sanding or polishing belt 46 bears lightly against'these rollers 44, so as to relieve the belt from friction with the guide 35 as it travels underneath the latter. When it is desired to sand or polish the rounded edges of a table-top or desk-top, the said roller-carrying frames 43 are disengaged from the lugs and are connected by means of adjustable links 47 with the plates 40, as shown in Fig. '7, and the frame 43 being swung downwardly the roller 44 is dropped below the surface of the tabletop being finished, so as to carry the belt 46 downward, as shown in Fig. 7, and bring it in contact with the curved edges of the table, so that such curved edge may be sanded or polished.

The belt 46, to which reference has been made, is mounted upon pulleys 48, supported in bearings 49 at each end of the machine, said bearings 49 being preferably formed, as shown, with an integral connecting web or frame 49, said frame being pivoted at one end to the machine-frame, so that the frame 49 may be swung on its pivot and cause the belt to travel in the centers of the pulleys, the swinging of the pivoted frame enabling the pulleys to be thrown slightly out of line in case a belt is longer on one edge than on the other. The movable end of the said pivoted frame may be held in any position of adjustment by means of screws 50, and similar screws are provided for adjusting the pulley 48 at the other end of the machine. In order that the said belt 46 may be kept under a uniform tension and also to allow for any difference in length, one of said pulleys 48 is connected with its bearing 49 by means of a swinging frame 51, the said pulley 48 being carried at the upper end of said frame and being normally held in its outer position by means of a weight 52, suspended by a cord or flexible connection 53, which passes over pulleys 54, mounted in an arm 55, projecting from the end frame 1 of the machine, said flexible connection 53 being secured to the upper end of the swinging frame 51, so as to exert a constant pull thereon, a buffer-spring 56 being provided'between a fixed stop 57 on the pulley-supporting arm and a stop 58, carried by the flexible connection 53. The stationary pulley 48 is provided with a driving-pul ley 59, by means of which power is imparted to said pulley 48 and the belt l6.

In the operation of the machine, the supporting-tracks 8 having been adjusted by means of the vertically-movable standards 4,

so as to give approximately the proper height for the work in hand, the work-table 15 and its supporting-carriage 14 are drawn outby the attendant and the work is placed thereon.

It is then passed slowly beneath the sanding or polishing belt, and the desired pressure of the work against the belt and its guide 35 is secured by depressing the hand lever or rod 19 and raising the work against the belt 46, the yielding guide 35 having been adjusted to the desired position above thework. It will be seen thatthe sanding and polishing belt merely changing the belts and substituting a;

suitable polishing-belt for the sanding-belt the machine is readily adaptable for polishing purposes, and it has been found that the polishing-belt moving in one'direction imparts a smooth and even polish to the surface not obtainable with machines of the reciprocating-rubber type. When the machine is used as a polishing-machine,the pumice-stone or polishing material is preferably made into a brick 59, which is placed in a hopper 60,- arranged just above the belt, as shown in Fig.

1, so that the polishing material will bearupon the surface of the belt and be deposited thereon, a small stream of water being fed to the belt just in front of the polishing material by means of a suitable pipe 61, as clearly shown in Fig. 1.

Having thus described my invention, I

claim and desire to secure by Letters Patent- 1. In a machine of the character described, the combination with a supporting-frame, of tracks mounted on said supporting-frame, a carriage freely movable on said tracks transversely of the machine, a work-table mounted on said carriage and movable independently thereof transversely of the machine, and finishing instmimentalities mounted above said table. a r

2. In a machine of the character described, the combination with a supporting-frame, of tracks mounted on said supporting-frame, a carriage freely movable on said tracks transversely of the machine, a work-table mounted on said carriage and movable independently thereof transversely of themachine, means for moving said work-table vertically relative to said tracks, and finishing instrumentalities mounted above said table.

3. In a machine of thecharacter described, the combination with a suitable supportingframe, of transversely placed supporting tracks adjustably mounted on said frame, a carriage freely movable on said tracks transversely of the machine, a table-supporting frame-mounted on said carriage and movable independently thereof transversely of the machine, a work-table carried by said supporting-frame, means for moving said table vertically relative to said supporting-frame, and. finishing instrumentalities mounted above said table. a

4. In a machine of the character described, the combination with a suitable supportingframe, of transversely-placed tracks adj ust ably mounted on said frame, said tracks beingprovided with stops at their outer ends, a

carriage freely movableon said tracks, a tablesupporting frame mounted on said carriage and movable independently thereof, said supporting frame having downwardly turned stops at its ends, a work-table mounted on said supporting-frame, means for moving said table vertically relative to said supporting frame,and finishing instrumentalities mounted above said table. v i

5. In a machine of the characterdeseribed, the combinationwith a suitable supportingframe, of transversely-placed tracks adj ustably mounted on said fram e,a carriage mounted on said tracks and freely movable thereon transversely of the machine, said carriage being provided with wheels having grooved outer extensions, a table-supporting frame mounted on said grooved outer extensions and movable transversely ofthe machine independently of the saidcarriage, rock-shafts mounted in said table-supporting frame,-links carried by: said rock-shafts, a work -table mounted on said links, means for moving said table vertically relative -to its supportingframe,and finishing instrumentalities mounted above said table.'

6. In a machine of the character described, the combination with a suitable supportingframe, of transverse supporting-tracks adjustably mounted onsa-idframe, a carriage mounted on said tracks and freely movable thereon, a table-supporting frame mounted on said carriage and movable transversely of the machine independently thereof, rockshafts mounted in said tablesupporting frame, links carried by said rock-shafts, a work-table supported by said links, a handlever secured to one of said rock-shafts by which said shaft may berocked and the said work-table movedvertically, aweighted lever secured to one of said rock-shafts to counterbalance the weight of the table, and finishing instrumentalities mounted above said table. I 7. In a machine of the character described,

ICC

chine on said tracks, means for moving said table vertically, a finishing belt mounted above said table, a belt-guide beneath which said finishing-belttravels, and'means for supporting said belt-guide so as to permit it to yield longitudinally and transversely; whereby the said finishing-belt may accommodate itself to inequalities of the work.

8. In a machine of the character described,

the combination with a supporting-frame, of

transverse tracks mounted on said frame, a

work-table mounted on said tracks and freely movable transversely of the machine, means for raising said work-table vertically, a finishing-belt adapted to travel above said worktable, a belt guide adjustably supported "--above said belt, springs normally forcing said belt-guide downwardly and permitting it to a yield longitndinally,and connections between said belt-guide and its supports whereby the said guide can rock transversely and allow the finishing-belt to accommodate itself to inequalities in the surface of the work.

9. In a machine of the character described, the combination with asupporting-frame, of A transversely-placed tracksadjustably mounted on said frame, a work-table supported by and freely movable on said tracks, means to move said table vertically, a continuous fin o ishing-belt adapted to travel above said table, I a belt-guide against the under surface of which said finishing-belt travels, and antifriction devices at each end of said belt-guide over which the finishing-belt runs.

10. In a machine of the character described,

-the combination with a supporting-frame, of a work-table movable transversely of said frame, means forraising said work-table vertically, a finishing-belt mounted above said 40 work-table, a yielding belt-guide against the under surface of which said belt travels, and yieldingly-mounted antifriction-rollers at each end of said belt-guide over which the said finishing-belt runs.

11. In a machine of the character described, the combination with a supporting-frame, of a work-table, a finishing-belt, a belt-guide against the under surface of which said finishing-belt runs, and between which and said table the work is held, and means for depressing the finishing-belt below its normal line of travel at each end of said belt-guide; whereby a curved or rounded edge may be finished.

12. In amachine of the character described, the combination with a supporting-frame, of a work-table mounted thereon, means for moving said table transversely of the machine, means for raising said work-table vertically, a finishing-belt mounted above said table, a belt-guide against the under surface of which said finishing-belt travels, antifriction-rollers at each end of said belt-guide over which the said finishing-belt runs, and

means for vertically adjusting said rollers.

13. In a machine of the character described, the combination with a supporting-frame, of

ceases a work-table mounted thereon, means for moving said table transversely of the machine, means for raising said work-tablev vertically, a finishing-belt mounted above said table, a belt-guide against the under surface of which said'finishing-belttravels, antifriction-rollers at each end of said belt-guide over which the said finishing-belt runs, and

means for lowering said antifriction-rollers and depressing the said belt at the ends of the belt-guide belowitsline of travel whereby a curved or rounded edge may be finished.

14. In a machine of the character described, the combination with a main supportingframe, of transversely-placed tracks adjustably mounted on said frame, a work-table movable on said tracks, means for moving said work-table vertically, a finishing-belt adapted to travel above said table, an adj ustable support mounted on said main supporting-frame above said belt, a yielding belt guide carried by said adjustable support against the under surface of which said finishing-belt runs, and antifriction-rollers adj ustably mounted on said adjustable support over which said finishing-belt runs.

15. Inamachine of thecharacterdescribed, the combination with a main supportingframe, of transversely-placed tracks adjustably mounted on said frame, a work-table movable on said tracks, meansfor moving said work-table vertically, a finishing-belt adapted to travel above said table, an adjustable supporting-frame mounted on said main frame above said belt, a yielding belt-guide .carried by said adjustable frame against the under surface of which said finishing-belt runs, plates secured to said adjustable supporting-frame at each end of said belt-guide, and adjustable lengthwise thereon, and antifriction-rollers supported by said adjustable plates over which said finishing-belt runs.

16. In a machine of the character described, the combination with a supporting-frame, of a work-table movable transversely of the machine, means for raising said Work-table vertically, a finishing-belt mounted to travel above said table, a belt-guide against the under surface of which said belt runs, a supporting-frame for said guide, supporting-rods for said guide depending from said frame, and yielding connections between said rods and guide whereby a rocking movement of said belt-guide is permitted.

17. In a machine of the character described, the combination with a supporting-frame, of a work-table movable transversely of the machine, means for raising said work-table vertically, a finishing-belt mounted to travel above said table, a belt-guide against the under surface of which said belt runs, a supporting-frame for said guide, supporting-rods for said guide depending from said frame, and spring-plates on said guide to engage said supporting-rods whereby a rocking movement of said belt-guide is permitted.

18. In amachine of the character described,

IIO

eeases 5 the combination with a supporting-frame, of a work-table mounted thereon and movable transversely of the machine, means for moving said work-table vertically, a finishing-belt mounted to travel above said table, a beltguide against the under surface of which said belt runs, anadjustable supporting-frame for said belt-guide, supporting-rods depending from said frame, yielding connections between said rods and said belt-guidewhereby a transverse rocking movement of said beltguide is permitted, springs surrounding said rods and normally forcing said beltguide downwardly, and means for adjusting the tension of said springs.

1 9. In a machine of the character described, the combination with a supporting-frame, of a work-table mounted thereon and movable transversely of the machine, means for moving said work table vertically, a springpressed, transversely-yielding belt-guideadjustably mounted above said table, a finishing-belt adapted to travel beneath said beltguide, a driving-pulley at one end of the machine over which said belt travels,-a rocking frame mounted at the other end of the machine, and an idler-pulley carried by said rocking frame over which said finishing-belt travels.

20. In a machine of the character described,

, ing-belt adapted to travel beneath said beltguide, a driving-pulley at one end of the machine over which said belt travels, a rocking frame mounted at the other end of the machine, an idler-pulley carried by said rocking frame over which said finishing-belt travels, and means to throw saidrocking frame to its outer position and maintain a uniform tension on said finishing-belt.

21. In a machine of the character described, the combination with a supporting-frame, of a work-table mounted thereon and movable transversely of the machine, means for movpolishing or finishing material.

pressed, transversely-yielding belt-guide adjustably mounted above said table, a finishing-belt adapted to travel beneath said beltguide, a driving-pulleyadjustably mounted at one end of the machine over which said belt travels, a rocking frame adj ustably mounted at the other end of the machine, an idler-pulley carried by said rocking frame over which supporting-pulleys over which said belt runs,

means for driving said pulleys and belt, and a hopper containing a finishing compound beneathwhich the upper run of said belt travels and from which it receives a coating of 23. In a machine of the character described, the combination with a main supportingframe, of a work-table adjustably mounted on said frame and movable transversely thereof, means for moving said table vertically relative to its adjustable supports, a beltguide adj ustably mounted above said table,

a continuous finishing-belt adapted to run against the under surface of said belt-guide, supporting-pulleys over-which said belt runs, means for driving said pulleys and belt, ahopper arranged above the upperrun of the said finishing-belt and adapted to deliver a finishing compound to the surface of said belt, and

a liquid-feed pipe above the said upper runof the belt in proximity to said hopper.

In testimony whereof I affix my signature in presence of two witnesses.

DE LASKI T. OLEMONS.

Witnesses:

GEO. OONDERMAN, II. S. MCKENNEY. 

